No matter how well connected with think we are, the networks of contacts that we naturally develop in our lives are inherently limited. Natural contact networks are myopic, consisting of people who largely shared the same points of view. This occurs because we tend to keep in contact with people who are like ourselves. Our contacts tend to be the same age, have the same interests and opinions, live in the same areas, and, more and more often, work in the same industry if not company as we do. We cannot develop a broader perspective from talking to people who share the greater part of our perspective.